We met with an American who became an Australian citizen. He is an international businessman who works all over the world. Much of his work has an Australian connection, but often he is working with clients in, say, Japan, doing a deal with Brazil. They don't really care where he is based.
He became an Australian citizen because he and his family like it here, and wanted to have roots somewhere. He did not, as I had thought, marry an Aussie, but brought his family here.
It struck me later that he is the first American that I know personally who became a citizen of another country just because he wanted to. He didn't grow up in the other country, marry a local, or have a political beef with the United States government. He just chose another country.
Many people all over the world know people from who have chosen to be Americans. Centre College, deep in the American heartland, has quite a few immigrants on the faculty, on the staff, and in the student body.
It is the rare American, though, who knows an emigrant from the United States. It is so rare that it comes as a shock that someone would actually fully shift allegiance from the United States to another nation.
We study abroad to broaden our horizons. Meeting a US emigrant was an unexpected, but useful, kind of broadening for everyone in the class.